I think most of the people in this thread knows how to appreciate both D90 and D7000 by the comments earlier on.
All camera "can make it", but with the latest technology offered to us most would heed the advice on acquiring the latest equipment because it would not the specs or would not be outdated so soon.
I am still using a D90, loyal to it till the day of FX =)
What is "outdated"? A piece of equipment is only outdated when we feel it does not meet our needs anymore in face of new technology. So in the end it is "us" that matters. Most of us are conditioned to think that things are not good enough anymore when the next model comes out.
That said, D90 is an awesome camera. Just barely 3 years ago, people are shouting to me "you gotta check out the D90! The ISO performance is unbelievable!!!". LOL.
There will always be a new Rebel camera next year, a new nikon body every two years, a new iphone next year. It never ends. Not trying to dissuade anyone anyone from buying new equipment. And there is nothing wrong to get the newest and the best. I lust for these things at times too. But just an observation. ;P
A video for us all...
http://www.youtube.com/watch?v=N2KLyYKJGk0